Analytical and Bioanalytical Chemistry

, Volume 374, Issue 7, pp 1205–1211

Application of headspace–mass spectrometry for differentiating sources of olive oil

  • Marcos I. Lorenzo
  • Pérez J. Pavón
  • Fernández M. Laespada
  • García C. Pinto
  • Moreno B. Cordero
  •  L. Henriques
  •  M. Peres
  •  M. Simões
  •  P. Lopes
Original Paper

DOI: 10.1007/s00216-002-1607-1

Cite this article as:
Lorenzo, M.I., Pavón, P.J., Laespada, F.M. et al. Anal Bioanal Chem (2002) 374: 1205. doi:10.1007/s00216-002-1607-1

Abstract.

In the present work we propose the use of headspace-mass spectrometry (HS-MS) for the characterisation of monovarietal olive oils, an issue of interest when the origin of an oil has to be determined. The HS-MS procedure involves the direct introduction of the sample into a vial, headspace generation and automatic injection of the volatiles into a mass spectrometer. The results were compared with those obtained using more conventional approaches, including chromatographic, spectrophotometric and other types of analysis. Linear Discriminant Analysis (LDA) was applied to the data obtained with both analytical methodologies to achieve the differentiation of the three types of samples. The proposed method is faster and cheaper than those usually employed for edible oil analysis and no sample preparation is required. Additionally, the measuring process is simple and the results obtained from chemometric treatment are 100% correct as regards classification and prediction, making it an appropriate method for routine control.

Headspace–mass spectrometry Electronic olfactometry Chemometric treatment Monovarietal oils

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • Marcos I. Lorenzo
    • 1
  • Pérez J. Pavón
    • 1
  • Fernández M. Laespada
    • 1
  • García C. Pinto
    • 1
  • Moreno B. Cordero
    • 1
  •  L. Henriques
    • 2
  •  M. Peres
    • 2
  •  M. Simões
    • 3
  •  P. Lopes
    • 3
  1. 1.Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, Universidad de Salamanca, 37008 Salamanca, Spain
  2. 2.Unidade Departamental de Biociências, Escola Superior Agraria de Castelo Branco, IPCB, 6000 Castelo Branco, Portugal
  3. 3.Departamento de Olivicultura, Estação Nacional de Melhoramento de Plantas, 7350 Elvas, Portugal